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| Gold Blend. A Coffee Jar Engine........ |
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| NickG:
Cheers Dave, back now, had a good time. Our last two trips were in the Yorkshire dales so we thought we'd try somewhere different, I went to these places as a kid too so brought back happy memories! Going somewhere in the lakes next week, I know what you mean though, beginning to realise it's quite hard work this camping lark! I think I may end up with arthritis, have always had overly achy joints etc for my age and a few of my ancestors have had it. Ha, as good a name as any, yep time to get the brass out when you've recovered from granddaughter duty! Nick |
| Brass_Machine:
Very cool. I don't think I have seen you actually build an engine yet... repair and restore, but not build? Or am I mistaken? Anyways... very cool idea! Eric |
| Stilldrillin:
Mike, Nick.... Thanks! Eric. Only the one! I was feeling a little left out, when everyone was making rocking engines. ::) http://madmodder.net/index.php?topic=1705.0 After this one, normal service will return, as I have 10 or so differing oddballs to sort out. :scratch: Here is one of them........ Anyroad! I made a cylinder out of a piece of bronze tube, 2" x 3/4 od. Bored it through to clean up. Turned a piece of delrin, a couple of thou' undersize....... Then spent the next hour or so lapping, with Brasso........ Think it worked ok......... Turned/ tapped and parted the piston........ Then screwed it onto a 4mm screw, with spacer. To fin turn o/d....... Threaded a piece of 4mm silver steel, for conrod. Rather pleased. It won't quite drop any further in, until touched. Then it slides the whole way down........ Next up. I need to recess the cylinder into the deck, at 36mm centres with the displacer bush....... Slight problem now, no boring head! ......... And it needs a hole a few thou' under 3/4". Just here....... But, Rizzo has been sold on. And a boring head has been ordered, with the proceeds. Hoping for delivery, and continuation, Monday. :thumbup: David D |
| dickda1:
I really like your idea of using Delrin for the lap. I gather it did not bell mouth the top of the bore. Dick |
| arnoldb:
Coming along great guns David :thumbup: Just gotta love Brasso; I see you also mix it with some oil for the lapping. :beer:, Arnold |
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